81954765

素因数分解:

$3^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2789}}^1$

素因数の和:3453

約数の個数: 24

約数和(自身を含む): 142323480

約数和(自身を除く): 60368715

約数列:

[1, 3, 5, 9, 15, 45, 653, 1959, 2789, 3265, 5877, 8367, 9795, 13945, 25101, 29385, 41835, 125505, 1821217, 5463651, 9106085, 16390953, 27318255, 81954765]

約数ペア:

[(1, 81954765), (3, 27318255), (5, 16390953), (9, 9106085), (15, 5463651), (45, 1821217), (653, 125505), (1959, 41835), (2789, 29385), (3265, 25101), (5877, 13945), (8367, 9795)]